It's not on the VMware HCL, so it could be several things. IF you have a spare USB flash drive hanging around, try installing to that. I would go with one that's 1-8GB in size (4GB or 8GB being my preference). If it still won't install to the flash drive, then it's something deeper. Could be anything from the CPU's installed, bios update level, NICs installed, etc... How much time do you really want to spend trying to get this to work??